hello, please how do i fix the problems on my twinmotion window

Is this what happens opening new file?

yes.

yes it does this, is there a way to fix this please…

Hey there can you give us your computer specification please?
Thank you

Processor Intel(R) Core™ i5-5300U CPU @ 2.30GHz
Video Card Intel(R) HD Graphics 5500
Operating System Windows 10
RAM 16 GB

Sorry to say but I am betting its your entire system. I would assume you need an i7 minimum with a dedicated video card like a GTX 2000 at a minimum… Anything less would not be an enjoyable experience…